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preface to fifteenth edition

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2.28 SECTION 2<br />

TABLE 2.6<br />

Abbreviations and Standard Letter Symbols (Continued)<br />

Diffusion coefficient, mobile D M<br />

Electron magnetic moment e<br />

Electron affinity E ea Fluidity<br />

<br />

phase<br />

Electron paramagnetic resonance<br />

EPR<br />

Diffusion coefficient, stationary<br />

D S<br />

phase<br />

Electron radius<br />

r e<br />

Diffusion current<br />

i d<br />

Electron rest mass<br />

m e<br />

Diffusion length<br />

L<br />

Electron spin resonance ESR<br />

Diffusion rate constant, mass k d<br />

Electronvolt<br />

eV<br />

transfer coefficient<br />

Electrostatic unit<br />

esu<br />

Dilute<br />

dil<br />

Elementary charge<br />

e<br />

Dirac delta function<br />

<br />

Elution volume, exclusion V e<br />

Direct current<br />

dc<br />

chroma<strong>to</strong>graphy<br />

Direct dipolar coupling constant<br />

D AB<br />

Emittance<br />

<br />

By blackbody<br />

M bb<br />

Disintegration energy Q<br />

Energy<br />

E<br />

Disintegrations per minute dpm<br />

Energy density<br />

w, <br />

Displacement vec<strong>to</strong>r of an u<br />

Energy per electron hole <br />

ion<br />

Dissociation energy<br />

D, E d<br />

pair of ion pair in detec<strong>to</strong>r<br />

Enthalpy<br />

H<br />

From ground state D 0<br />

Entropy<br />

S<br />

From the potential minimum<br />

D e<br />

Entropy unit<br />

e.u.<br />

Equilibrium constant K, K 0<br />

Distribution ratio<br />

D<br />

Concentration basis K c<br />

Donor ionization energy E d<br />

Molality basis<br />

K m<br />

Dropping mercury electrode dme<br />

Pressure basis<br />

K p<br />

Dyne, unit of force<br />

dyn<br />

Equilibrium position vec<strong>to</strong>r R 0<br />

Einstein transition probabilities<br />

A, B<br />

ofanion<br />

Equivalent weight<br />

equiv wt<br />

Spontaneous emission A nm<br />

Erg, unit of energy<br />

erg<br />

Stimulated absorption B mn<br />

Especially<br />

esp.<br />

Stimulated emission B nm<br />

et alii (and others)<br />

et al.<br />

Electric charge<br />

Q<br />

et cetera (and soforth) etc.<br />

Electric current<br />

I<br />

Ethyl<br />

Et<br />

Electric current density j, J<br />

Ethylenediamine<br />

en<br />

Electric dipole moment of a p, <br />

Ethylenediamine-N,N,N,Ntetraacetic<br />

EDTA<br />

molecule<br />

acid<br />

Electric displacement D<br />

Euler number<br />

Eu<br />

Electric field gradient q<br />

Exempli gratia (for example) e.g.<br />

Electric field strength E<br />

Expansion coefficient <br />

Electric flux<br />

<br />

Exponential<br />

exp<br />

Electric mobility<br />

u, <br />

Extent of reaction<br />

<br />

Electric polarizability of a <br />

Fanofac<strong>to</strong>r<br />

F<br />

molecule<br />

Farad<br />

F<br />

Electric potential<br />

V, <br />

Faraday constant<br />

F<br />

Electric potential difference U, V<br />

Fermi, unit of length<br />

f<br />

Electric susceptibility e<br />

Fermi energy<br />

E F<br />

Electrical conductivity <br />

Film tension<br />

f<br />

Electrical conductance G<br />

Film thickness<br />

h, t<br />

Electrical resistance<br />

R<br />

Fine structure constant <br />

Electrochemical transfer coefficient<br />

<br />

Finite change<br />

<br />

First radiation constant c 1<br />

Electrokinetic potential <br />

Flow rate<br />

q<br />

Electromagnetic unit<br />

emu<br />

Flow rate, column chroma<strong>to</strong>graphy<br />

F c<br />

Electromotive force<br />

E, emf<br />

Electron<br />

<br />

e, e<br />

Fluid phase (gas or liquid) fl

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